The Clarence Schmalz Cup is the Ontario Hockey Association's Junior "C" ice hockey championship and championship trophy. The champions of the Provincial Junior Hockey League (PJHL) are awarded the Cup. The PJHL was formed in 2016 from the former 8 provincial leagues that previously competed in a tournament, commonly called the All-Ontario Championships, to determine the winner of the Cup.

The Ontario Hockey Association (OHA) is the governing body for the majority of junior and senior level ice hockey teams in the province of Ontario. Founded in 1890, the OHA is sanctioned by the Ontario Hockey Federation along with the Northern Ontario Hockey Association. Other Ontario sanctioning bodies along with the OHF include the Hockey Eastern Ontario and Hockey Northwestern Ontario. The OHA controls three tiers of junior hockey; the "Tier 2 Junior "A", Junior "B", Junior "C", and one senior hockey league, Allan Cup Hockey.